Is this weather normal in Morgan County?

Illinois · county records since 1895, through September 2026.

Weather › Illinois › Morgan County

Morgan County just had its warmest September ever recorded, +7° against the usual. Morgan County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 60°, lows near 38°

That is the 1991 to 2020 average for these dates in Morgan County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: +6.0°OctNov: +1.7°NovDec: -2.1°DecJan 2026: -2.5°JanFeb: +3.7°FebMar: +7.1°MarApr: +6.4°AprMay: -0.5°MayJun: -0.1°JunJul: +1.2°JulAug: +1.0°AugSep: +7.4°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: -1.4 inOctNov: -0.9 inNovDec: -1.3 inDecJan 2026: -1.1 inJanFeb: -1.4 inFebMar: +2.9 inMarApr: +1.8 inAprMay: -1.5 inMayJun: +3.4 inJunJul: -1.9 inJulAug: +1.3 inAugSep: -1.7 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Morgan County

MonthUsual high / lowUsual rainWarmestColdest
January36° / 19°2.2 in38.8° 200610.5° 1977
February41° / 23°1.9 in41.6° 201716.9° 1978
March52° / 32°2.8 in56.2° 201225.7° 1960
April65° / 42°4.1 in60.0° 189644.3° 1907
May75° / 53°4.7 in72.5° 201856.6° 1924
June83° / 62°4.6 in79.0° 193466.2° 1903
July86° / 65°3.9 in84.5° 193670.3° 2014
August85° / 63°3.4 in82.2° 194767.5° 1915
September79° / 55°3.3 in74.5° 202659.5° 1918
October67° / 44°3.1 in65.1° 196345.2° 1925
November52° / 33°2.9 in50.2° 200134.5° 1976
December40° / 24°2.1 in41.3° 201516.5° 1983

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Morgan County

Crime Radar: Jacksonville, South Jacksonville

Nearby counties